Whatman Group manufactures Regenerated Cellulose Membranes for Organic Media. Whatman Group manufactures English mill making fine, handcrafted paper. The Regenerated Cellulose Membranes for Organic Media are made of pure cellulose, without any wetting agents. The Regenerated Cellulose Membranes for Organic Media has spontaneously wetting, very good wet strength. The Regenerated Cellulose Membranes for Organic Media is extremely chemically resistant; suitable for aqueous and organic media. The Regenerated Cellulose Membranes for Organic Media is mechanically stable.